I've got an ASP.NET 4.0 web application (webforms, not mvc; asp.net routing isn't used) that runs fine under IIS7. When I try to run it under IIS6 and navigate to http://localhost/MyApp/
, I get the following exception:
File does not exist.
System.Web.HttpException
at System.Web.StaticFileHandler.GetFileInfo(String virtualPathWithPathInfo, String physicalPath, HttpResponse response) (+0 IL, +2509040 JIT)
at System.Web.StaticFileHandler.ProcessRequestInternal(HttpContext context, String overrideVirtualPath) (+54 IL, +198 JIT)
at System.Web.DefaultHttpHandler.BeginProcessRequest(HttpContext context, AsyncCallback callback, Object state) (+263 IL, +347 JIT)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() (+214 IL, +8967220 JIT)
at System.Web.HttpApplication.ExecuteStep(HttpApplication.IExecutionStep step, Boolean& completedSynchronously) (+54 IL, +184 JIT)
Note that this output comes from my own custom error page. Thus, .NET itself is working fine. I can even remotely debug it and stuff.
Now, if I enter http://localhost/MyApp/Default.aspx
, all works fine, I get the default page, etcetera. The first thought would be that the default document isn't specified in IIS, but it is. Even worse - if I disable it altogether, I still get the same error message (and yes, I restarted IIS and cleared my browser cache)!
It seems as if the request for /
is always sent directly to ASP.NET which then gets confused because it doesn't have any default document concept. But I don't have any wildcard mappings defined, so how can that be?